The QA1 K frame won't automatically produce better handling over the stock unit. By their own admission, the QA1 unit is nearly as heavy as the stock unit but does have a significant increase in rigidity and some extra clearance. The rigidty is single digit increase and most likely not felt in the seat of the pants. The extra room will be immediately noticeable. If you are pushing the envelope in speed, performance, and handling, you might notice an improvement. If its a cruiser, you probably never will feel the difference.